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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Electrical >> Gauges >> Displays And Gages >> Diagnostic Information and Procedures >> DTC P0521 >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Engine Oil Pressure 5-Volts Reference Circuit P0522 P0522 - P0521
Engine Oil Pressure Sensor Signal Circuit P0522 P0522 P0523 P0521
Low Reference - P0523 - P0521
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